Change-speed mechanism.



J. P. APPINGER. CHANGE SPEED MECHANISM. APPLICATION FILED 0M. 4, 1909.

Patented Aug. 30, 1910.

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ATTORNEY I is eccentric relatively to the driving shaft 1. "The spindle 3, and with it the friction pulran-sures mraur orrica. i

semi: FRIEDRICH nrrmenaor NUBEMIBEBG, GERMANY, ASSIGNOR T AUTOMO- BILWEBKE, UNION .AcrmNeasELLscHAF'r, or NUBEMBERG, GERMANY.

"crimes-swab mncmmsm.

concern: .7 Beit iknowrrthat- I, JOHANN F'Rraomcn Arrmenn, of Nuremberg, Bavaria, Germany, have Invented an Improvement n or Relatin to Change-Speed Mechanism, of' which the following description, in con nection with v the accompanying drawings, is as ecification. f; 4 g. Y

- his invention relates to a driving device for changing-speeds, chiefly intended to be"used' iumotor' vehicles. In the new driving gearin friction wheels are used. It

'is of 'course we lkn'own in itself to use fricis illustrated by way of example in Figures 1 and 2 of the accompanying drawingwhich are respectively a 'longitudmal section and cross-section. I

1 is the motor spindle connected to the step pulley 2. The driven spindle 3 carries a friction wheel 4. The spindle 3 is mount ed in bearings 5, 6 and 7 in a longitudinally adjustable manner, and is moved backwardand forward at will by means of a system of levers suitably engaging with the spindle collar or ring 8. The bearings 5, 6 and 7 are mounted on the arms 9 and 10 of a part 13 rotatable about the spindle 11.- The spindle 11 is mounted in the stationary bracket 12 so that it cannot be shifted, and

ley 4, can, therefore, oscillate about the spindle 11. This'mov'ement isstarted'and limited by suitably arranged levers, the end lever 14 of which'is pivoted to the part 13. The pulley4 is further of such construction that, in addition to being capable of being used as a friction pulley, it can also be used as a. member of a friction clutch. It is, therefore, under cut at the inner edge 16,

" 'sothat it fits the other clutch half of suitable constructionjpi'ovidedzin the step pulley 2. For the ordinary or normal speed of motor'vehicles, the pulley 4 or the clutch half 16 'is pushed over the clutch half 15. The

H Specification ofLettez-s Patent. A ucatmmea October 4, 1909,. Serial mtzaass.

1 adjustable. 'moved aside in the direction of the arrow shown in the drawing, the edge of the pulley Patented 'Aug. 30, 1910.

known manner with leather or the like, so as to insure friction.

If it is desired to have a greater number of revolutions of'the driven, spindle 3, the said spindle 3, or the ulley 4, are moved longitudinally backwar so that the clutch 15 16 is disengaged. The s indle 3, or the pulley 4 is then swung to t e side until it strikes the corresponding step 17 or '18. In the drawing, the spindle 3 is longitudinally shifted to such an extent that the pulley 4 must strike the outer step 18. It is obvious that a pulley could be used with a still larger number of .ste s the action remaining the same. The p 'ley 4 can, therefore, be used both as a friction wheel and as a clutch half, and this construction of the pulley 4 is one of the most important points of the present 18 and the pulley 4, with corresponding teeth fitted into each other, the action re maining the same.

Since change speed gearsfor the driving spindle, if they are to be suitable for motor .vehicles, must make it possible to combine with them ina simple manner a reversing j device, it is necessary toshow in which way ;the reversing device is provided in 'the ;above described gear. On the spindle 3 is 5 mounted, by means of a sleeve 31, a toothed 1. wheel 19 which transmits the movement of the said spindle to the toothed wheel 21 gmount'ed loose -on the spindle 20. I Itoo'thed'wheel 21 is formed at the side into I a claw clutch half 22; the-other half of which clutch issuitably connected to the hub24, of fthe pulley 23. The pulley 23 is keyed to the spindle 20 in such manner that "it is laterally If, therefore, the pulley 23 is 26 will be pressed against the friction wheel :27 keyed to the spindle 3 by means of the sleeve 31. At the same time, the clutch 22 is disengaged. The movement of the'spindle 3.

.is consequently transmitted through the wheel 27 to the ulley 23 and therefore to the spindle 20 which is then rotated in the same direction as the main the contrary, the pulley 23 is again pushed back in the direction of the arrow 28, or if after the release of the corresponding levers,

f the previously tensioned spring 29 again The spindle 1. If, on

pushes back the pulley 23, the clutch 22 is again brought into engagement. At the same time the rim of the wheel 26 is. disengaged from the pulley 27, so that the move ment of the spindle 3 is transmitted by the wheels 19, 21, clutch 22 and pulley 23 to the spindle 20 which rotates then in the opposite direction to that of the spindle 1. To the spindle 20 is coupled a'Cardan joint 30 for starting or transmitting the rotations to the corresponding axles.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. A change speed gearing comprising in combination, a driving wheel provided with annular change speed faces of difierent diameters and a tapering annular male clutch member, a supporting shaft eccentrically disposed with respect to said driving wheel, a frame pivotally mounted on said supporting shaft and having bearings arranged to be axially alined with said driving wheel when said frame is swung into one position, a driven shaft in said bearings, a driven wheel mounted on said driven shaft for engagement with saidspeed faces and provided with a tapering female clutch member, means for swinging said frame abreast of said wheel, means for adjusting said driven shaft longitudinally to aline said driven wheel with one of said speed faces or engage said clutch members, a friction wheel fixed against longitudinal movement and connected to the driven shaft to rotate therewith, a power shaft 20 co-ax'ially arranged with respect to said supporting shaft, a friction wheel slidable and nonrotat'ively fixed on said power shaft and engaging said anchored friction wheel, and means for moving said slidable friction wheel into and out of engagement with said anchored Wheel. I

2. A change speed gearing comprising in combination, a driving wheel provided with annular change speed faces of different diameters, a supporting shaft eccentrically disposed with respect to said driving wheel, a frame pivotally mounted on said supporting shaft having bearings arranged to be axially alined with said driving wheel when said frame is swung into one position, a driven shaft in said bearings, a driven wheel mounted on said driven shaft for engagement with said faces, means for swinging said frame abreast of said driving wheel, means for adjusting said driven shaft longitudinally to aline said driven wheel with any one of said speed faces, a friction wheel fixed against longitudinal movement and connected to the driven shaft to rotate therewith, a power shaft 20 coaxially arranged with respect to said supporting shaft, a friction wheel slidable and non-rotatively fixed came on said su porting shaft and engaging said anchored iction wheel, and means for moving said slidable friction wheel into and out of en agement with said anchored wheel.

3. change speed gearin comprising in combination, a driving whee provided with annular change speed faces of different diameters, a supporting shaft eccentrically disposed with respect to said driving wheel, a frame pivotally mounted on said supporting shaft and havin bearings arrangedto be axially alined with said driving wheel when said frame is swung into one position, a driven shaft in said bearings, a driven Wheel mounted on said driven shaft for engagement with said speed faces, means for swlnging said frame abreast of said driving wheel, means for adjusting said driven shaft longitudinally to aline said driven wheel with said speed faces, a friction wheel fixed againstlongitudinal movement and connected to said driven shaft to rotate therewith, a power shaft 20 co-axially arranged with respect to said supporting shaft, 9. power friction wheel nonrotatively and slidably mounted on said power shaft and provided with a tapering flange overhanging said anchored friction wheel, and means for movin said power friction wheel into and out o engagement with said anchored friction Wheel.

4. A changespeed gearing comprising in combination, a driving wheel provided with annular change speed faces of different diameters, a supporting shaft eccentrically disposed with respect to said driving wheel,

said driven shaft to engage said driven wheel with said speed faces, a power shaft 20 co-axially alined with said supporting shaft, gears connecting said driven and power shafts, the power shaft gear having a clutch member, a friction wheel mounted on said driven shaft, and a power friction wheel mounted on said power shaft and engaging said first mentioned friction wheel, said power friction wheel having a clutch adapted for engagement with" said gear clutch, and means for moving said power friction wheel in one direction to engage said gear clutch and disengage said friction wheel and in another direction to disengage said gear clutch and engage said friction wheel.

5. A change speed gearing comprising in combination, a driving wheel provided with a plurality of speed faces, a driven shaft,

a driven wheel on said driven shaft for engagement with said speed faces, a frame carrying said driven shaft and pivoted-to swing said driven wheel into engagement with said faces, a friction wheel on said driven shaft, a power shaft, a second friction wheel on said power shaft for engagement with said first named friction wheel, gears connecting said driven and power shafts, one of said gears and said second friction wheel having coacting clutch members, and means for moving said power fricshaft, a second friction wheel slidably mounted on said power shaft and provided with a tapering flange overhanging said first named friction wheel, and means for moving said power wheel into and out of engagement with said first named friction wheel.

7. A change speed gearin comprising in combination, a driving whee provided with a plurality of change speed faces, a driven shaft, a driven wheel on said driven shaft for engagement with said speed faces, a frame carrying. said driven shaft and pivoted to swing said driven wheel into engagement with said speed faces, a friction wheel on said driven shaft, a power shaft coaxially arranged with respect to the pivot of said frame, a second friction wheel slidably mounted on said power shaft, and means for movin said second friction wheel into and out o engagement with said first named friction wheel.

8. A change speed gearing comprising in' swing the same in axial alinement with said driving wheel and to swing said driven wheel into engagement with said speed faces, said driven wheel having a clutch member adapted for engagement with the clutch member of said drivin axially arranged with res ct to said supporting shaft, a second iction wheel on wheel, a friction wheel on said driven sha t, a power shaft cosaid power shaft, and means for moving said second friction wheel into engagement with said first named friction wheel.

' 9. A change s eed gearin comprising in combination, a riving whee provided with a plurality of change speed faces, a driven shaft, a driven wheel on said shaft for engagement with said speed faces, a frame carrymg said driven shaft and pivoted to swing said driven wheel into engagement with said speed faces, a power shaft coaxially arranged with respect to the pivot of said frame, and devices connected with said driven and power shaft for operatively connecting the same.

10. A change speed gearing comprising in combination, a driving wheel provlded with a plurality of change speed faces, a driven shaft, a driven wheel on said shaft for engagement with said speed faces, a frame carrying said driven shaft and pivoted to swing said driven wheel into engagement with said speed faces, a power shaft coaxially arranged with respect to the pivot of said frame, and coacting devices operatively related with said driven and power shafts whereby the latter may be operated in the same or in a reverse direction with respect to the direction of rotation of said driven shaft.

11. A change speed gearing comprising in combination, a driving wheel provided with a plurality of change speed faces, a driven shaft, a driven wheel on said shaftfor engagement with said speed faces, a frame carrying'said driven shaft and pivoted to swing said driven wheel into engagement with said speed faces, a power shaft coaxlally arranged with respect to the pivot of said frame, devices operated b said driven shaft, and an element on sai power shaft arranged for movement in -o posite d rections to alternatel engage-sai devices, for the purpose set orth.

12. Achange speed gearin comprising in combination, a driving whee provlded with a plurality of change speed faces, a driven shaft, a driven wheel on said shaft for engagement with said speed faces, a movabl mounted frame carrying said driven shaand arranged to move said driven wheel into engagement with said speed faces, a friction wheel on said driven shaft, a power shaft, a second friction wheel slidably mounted on said power shaft, and means for moving said second friction wheel 1nto and out of engagement with said first named friction wheel.

In testimony whereof I afiix my signature in presence of two witnesses.

JOHANN FRIEDRICH APPINGER. Witnesses:

HEINRICH Fm'rn, OSCAR Boon. 

